https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71399
--- Comment #9 from Ludovic Courtès ---
GCC 4.9.4 exhibits the same bootstrapping failure (again on
arm-linux-gnueabihf).
I reverted the ARM-specific changes made between 4.9.3 and 4.9.4 by applying
the result of "diff -ur
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71399
--- Comment #8 from Ludovic Courtès ---
Created attachment 39547
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39547=edit
Revert ARM-specific 4.9.3-to-4.9.4 changes
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71399
--- Comment #7 from Ludovic Courtès ---
> I have attached the diff of stage[23]-gcc/real.c.192r.expand in the hope it
> would provide useful info.
The diffs are too noisy: due to '-gtoggle', we not only get "# DEBUG" comments
in stage2 dumps
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71399
--- Comment #6 from Ludovic Courtès ---
FWIW, we're bootstrapping from an ARM->ARM pseudo cross-compiler (same version,
that is 5.3.0 in the initial report, 5.4.0 in the latest report), along the
lines of:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71399
--- Comment #5 from Ludovic Courtès ---
I tried this time with GCC 5.4.0, and with BOOT_CFLAGS='-O2 -g0 -da'. I'm also
getting the failure:
make[3]: Leaving directory '/tmp/guix-build-gcc-5.4.0.drv-0/build'
Comparing stages 2 and 3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71399
--- Comment #4 from Ludovic Courtès ---
Created attachment 38650
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38650=edit
Diff of one of the RTL phases between stage 2 and 3, gcc/real.c, GCC 5.4.0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71399
ktkachov at gcc dot gnu.org changed:
What|Removed |Added
CC||ktkachov at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71399
--- Comment #2 from Ludovic Courtès ---
(In reply to ktkachov from comment #1)
> I tried a bootstrap of the GCC 5.3.0 release as taken from one of the
> mirrors in:
> https://gcc.gnu.org/mirrors.html
>
> This was done on an ARMv8-A machine
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71399
--- Comment #1 from ktkachov at gcc dot gnu.org ---
I tried a bootstrap of the GCC 5.3.0 release as taken from one of the mirrors
in:
https://gcc.gnu.org/mirrors.html
This was done on an ARMv8-A machine inside an aarch32 chroot with binutils
